我是 Flutter 新手,正在尝试使用 Firebase,但该应用在发布时未初始化 Firebase 它会抛出一个错误,但它可以在您运行该应用程序时正常工作。正在使用安卓工作室
<块引用>** E/flutter (12950): [ERROR:flutter/lib/ui/ui_dart_state.cc(199)] 未处理的异常:MissingPluginException(未找到实现) 用于通道上的 Firebase#initializeC ore 方法 plugins.flutter.io/firebase_core)
E/flutter (12950):#0 MethodChannel._invokeMethod
(包:flutter/src/services/platform_channel.dart:156) E/flutter
(12950): E/颤振 (12950): #1
MethodChannel.invokeListMethod
(包:flutter/src/services/platform_channel.dart:344) E/flutter
(12950):
E/flutter (12950):#2 MethodChannelFirebase._initializeCore (包:firebase_core_platform_interface/src/method_channel/method_channel_firebase.dart:30) E/颤振(12950):
E/flutter (12950):#3 MethodChannelFirebase.initializeApp (包:firebase_core_platform_interface/src/method_channel/method_channel_firebase.dart:75) E/颤振(12950):
E/flutter (12950):#4 Firebase.initializeApp (包:firebase_core/src/firebase.dart:44) E/flutter (12950):
E/flutter (12950):#5 main (包:ug_campus_papers_example/main.dart:13) E/flutter (12950): E/扑(12950): **
第 13 行是 await Firebase.initializeApp();
我的主文件是
void main() async {
WidgetsFlutterBinding.ensureInitialized();
await Firebase.initializeApp();
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
debugShowCheckedModeBanner: false,
title: 'App1 Test',
home: StreamBuilder(
stream: FirebaseAuth.instance.authStateChanges(),
builder: (BuildContext context, AsyncSnapshot<User> snapshot) {
if (snapshot.hasData) {
User user = FirebaseAuth.instance.currentUser;
return Make1(user: user,);
} else
return SignInScreen();
},
),
);
}
}
pubspec.yaml 文件如下
name: ug_camp_example
description: My Flutter app 1.
version: 3.0.1+3
environment:
sdk: ">=2.12.0 <3.0.0"
dependencies:
flutter:
sdk: flutter
firebase_core: "^0.7.0"
firebase_storage: "^7.0.0"
firebase_auth: "^0.20.1"
cloud_firestore: "^0.16.0+1"
ug_camp:
path: ../
cupertino_icons: ^1.0.2
google_fonts:
provider:
file_picker: ^1.1.1
flutter_plugin_pdf_viewer:
sqflite:
path:
flutterwave:
flutter_launcher_icons: ^0.7.4
dev_dependencies:
flutter_test:
sdk: flutter
flutter_icons:
image_path: "assets/images/apptest1.png"
android: true
ios: true
flutter:
uses-material-design: true
答案 0 :(得分:0)
请尝试以下操作:
您提到您使用的是 Android Studio,但您是在 Android 还是 iOS 上运行?我可以根据平台提供更多说明。